[Issue 23916] Non-eponymous template instances have a "type" (void)

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=23916

--- Comment #5 from Nick Treleaven <nick at geany.org> ---
It checks if `a` has a type. It tells the reader that `a` is not a module or a
type itself.

Why is it a problem if a template instance has a type?

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